From: Boaz Harrosh <bharrosh@panasas.com>
To: open-osd <osd-dev@open-osd.org>,
NFS list <linux-nfs@vger.kernel.org>,
Daniel Gryniewicz <dang@linuxbox.com>,
Elizabeth Ellenbogen Ziph <elizabeth@linuxbox.com>,
"Pathak, Santosh" <santoshp@panasas.com>
Cc: Benny Halevy <bhalevy@primarydata.com>,
Sachin bhamare <sachin.bhamare@gmail.com>
Subject: Re: [osd-dev] [RFC 0/3] ore: raid6
Date: Thu, 10 Apr 2014 14:02:31 +0300 [thread overview]
Message-ID: <53467A47.4090602@panasas.com> (raw)
In-Reply-To: <53467667.3010304@panasas.com>
On 04/10/2014 01:45 PM, Boaz Harrosh wrote:
> Hi all
>
> proud to present some experimentation with raid6 in ORE.
>
> These simple patches will enable raid6 using the Kernel's raid6_pq engine
> for support under exofs and pnfs-objects. There is nothing needed to do
> at exofs and pnfs-obj. Just fire your mkfs.exofs with --raid=6 (that was
> already supported before) and off you go as usual. The ORE will pick up
> the new map and will start writing two devices of redundancy bits.
>
> Very RFC right now. Only lightly tested. Git clone linux and compile.
> Only a very few parameters tested:
> group_width=5 && group_width=6 s_unit=4*PAGES && s_unit=1*PAGE
> Please have a try, report all the crashes.
>
Forgot to say if anyone wants to test here:
git clone git://git.open-osd.org/linux-open-osd.git raid6
> In the next iteration I would like to add some raid6-math documentation
> which I think is needed for completeness.
>
> I want to deeply thank Daniel Gryniewicz who found first all the
> bugs in the old raid code, and inspired these patches.
>
> list of patches:
> [PATCH 1/4] ore: (trivial) reformat some code
> [PATCH 2/4] ore: Remove redundant dev_order(), more cleanups
> [PATCH 3/4] ore: Support for raid 6
>
> Cheers
> Boaz
prev parent reply other threads:[~2014-04-10 11:02 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-10 10:45 [RFC 0/3] ore: raid6 Boaz Harrosh
2014-04-10 10:49 ` [PATCH 1/3] ore: (trivial) reformat some code Boaz Harrosh
2014-04-11 11:12 ` Mkrtchyan, Tigran
2014-04-12 9:07 ` Boaz Harrosh
2014-04-12 9:26 ` [osd-dev] " Boaz Harrosh
2014-04-10 10:53 ` [PATCH 2/3] ore: Remove redundant dev_order(), more cleanups Boaz Harrosh
2014-04-10 11:00 ` [PATCH 3/3] ore: Support for raid 6 Boaz Harrosh
2014-04-10 11:02 ` Boaz Harrosh [this message]
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